Automate SSL FTP upload via PowerShell

Question

I have searched and read a lot about downloading SSL FTP files in PowerShell... But how do I upload them? I have a filename I need to upload each day and I get errors that I am not logged in. I'm currently uploading to other FTP sites like this:

$Filename = "myfile.txt"
$FullPath = "\\server\share\$Filename"
$ftp = "ftp://user:[email protected]/$Filename"
$ftpWebClient = New-Object System.Net.WebClient
$ULuri= New-Object System.URI($ftp)
$ftpWebClient.UploadFile($ULuri, $FullPath)

Do I need to create a whole new block of code for the SSL FTP upload, or do I just need to make minor adjustments to this code?

Thanks!

Chris N · Accepted Answer · 2012-08-09 17:06:15Z

8

I use the WinSCP DLL to do this stuff. Check out some examples here: http://winscp.net/eng/docs/library#powershell

Here's some of my sample code.

[Reflection.Assembly]::LoadFrom("D:\WinSCP.dll") | Out-Null
$sessionOptions = New-Object WinSCP.SessionOptions
$sessionOptions.Protocol = [WinSCP.Protocol]::Sftp
$sessionOptions.HostName = "192.168.1.120"
$sessionOptions.UserName = "user"
$sessionOptions.Password = "pass"
$session = New-Object WinSCP.Session
$session.Open($sessionOptions)

#upload stuff here, check the link for detail on how, and use powershell to populate your file list!

$session.Dispose()

answered Aug 9, 2012 at 17:06

Chris N

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3 Comments

Martin Prikryl Over a year ago

SFTP is not FTP over TLS/SSL. For FTP over TLS/SSL use $sessionOptions.Protocol = [WinSCP.Protocol]::Ftp and $sessionOptions.FtpSecure = [WinSCP.FtpSecure]::Explicit

Mort Over a year ago

Just to add to @MartinPrikryl's comment, you will also need to either set $sessionOptions.GiveUpSecurityAndAcceptAnyTlsHostCertificate = $true or set $sessionOptions.TlsHostCertificateFingerprint = "00:11:22:..."

Martin Prikryl Over a year ago

@Mort You need that only if the server's certificate is not signed by a trusted authority.

h0r41i0 · Accepted Answer · 2017-04-14 21:18:02Z

6

As you are already using the WebClient class from the .NET framework in your script, I suggest you create a derived version from WebClient that supports FTP over TLS, by embedding C# code in PowerShell:

$typeDefinition = @"
using System;
using System.Net;
public class FtpClient : WebClient
{
    protected override WebRequest GetWebRequest(Uri address)
    {
        FtpWebRequest ftpWebRequest = base.GetWebRequest(address) as FtpWebRequest;
        ftpWebRequest.EnableSsl = true;
        return ftpWebRequest;
    }
}
"@

Add-Type -TypeDefinition $typeDefinition
$ftpClient = New-Object FtpClient
$ftpClient.UploadFile("ftp://your-ftp-server/yourfile.name", "C:\YourLocalFile.name")

answered Apr 14, 2017 at 21:18

h0r41i0

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